Chemistry, 19.07.2019 10:30 caroline1390
Will mark as brainliest. a 642 ml sample of oxygen gas at 23.5°c and 795 mm hg, is heated to 31.7°c and the volume of the gas expands to 957 ml. what is the new pressure in atm? a) 0.723 atm b) 0.932 atm c) 3.05 atm d) 5.19 atm
Answers: 2
Chemistry, 22.06.2019 10:30
Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?
Answers: 3
Chemistry, 22.06.2019 16:00
Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy
Answers: 1
Chemistry, 22.06.2019 16:00
If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml
Answers: 1
Will mark as brainliest. a 642 ml sample of oxygen gas at 23.5°c and 795 mm hg, is heated to 31.7°c...
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